Every new home starts with a base price and a menu: flooring, cabinets, countertops, tiles, fixtures, and structural options like an extended patio or a third garage bay. The menu is where builders make their margin, so walk in knowing what is worth it.
My rule of thumb: prioritize what you cannot change later. Structural options, layout changes, and anything behind the walls go first. Cosmetic finishes you can refresh over time, and builders often run promotions on the finishes they want to move.
Ask what allowance the base price includes, and compare each menu price against what the same work costs after move-in. Some upgrades are a steal at the builder's price; some are not.